Bobbin positioning attachment for pin boards



.35mgI 2, 1949. AG. B. MARKLE, JR 2,477,700

BOBBIN POSITIONING ATTACHMENT FOR PINBOARDS Filed Jan. 2s, 1945 2 sheets-sheet 2 G BMARKLEH.

551 I GZIIZWZIUW.

Patented Aug. 2, 1949 UNITED STATES PATENT @FFICE BOBBIN POSITIONING ATTACHMENT FOR PIN BOARDS Application January 26, 1945, Serial No. 574,802

8 Claims.

This invention relates to a bobbin positioning attachment for pin boards for supporting bobbins cr the like, the object being to provide a pin board with a projection adapted to enter a recess in the head of the bobbin to prevent the bobbin from rotating around the pin of the board when placed thereon.

Another object oi my invention is to provide a pin board especially adapted to be yused in connection with bobbins with removable heads whereby the bobbin when in position on the pin board will be prevented from rotating around the pin, thereby enabling a Spanner wrench to be placed over the head oi a bobbin into the recesses thereof so that the head can be removed very quickly.

Another object of my invention is to provide a construction of pin board attachment which can be readily attached to any of the well known iorrns of pin boards now in use.

With these objects in View:

l of the drawings is a top plan view of a portion of the pin board showing bobbins in position thereon.

Fig. 2 is an enlarged side elevation partly in vertical section on the line 2-2 of Fig. 1.

3 is a top plan view of a preferred form of attachment showing it in position on the cross bars oi the pin board.

Fig. 4 is a side elevation of Fig. 3, a portion of the ngure being in vertical section on the line tw@ oi Fig. 3.

Fig. 5 is a view in side elevation of the attach= nient.

Fig. 6 is an end view of the attachment.

Fig. 7 is a detail view showing the ears of the attachment crimped around the cross bar of the pin board.

Fig. 8 illustrates a modiiied form of the invention.

In the drawings, I is a pin board which is preferably formed rectangular having cross bars il and 3 which overlap each other and are preferably secured together by a pin il which forms a support for the bobbin when in position thereon. The pin is shown provided with a collar 5 and a reduced portion which extends through registering openings formed in the cross bars 2 and 3 i ne pin board I, the head being riveted as nown at E for securing the pin in position.

In the form shown in Figs. l to '7 a metal plate l is provided with a central opening 8 to receive the collar 5 of the pin and is placed over the cross bar il and is provided with U-shaped portions 9 and It which embrace the cross bar and are crimped around the same as shown at II in Fig. '7 so as to securely fasten the plate in position on the pin board. The plate is provided with projections I2 in the form of pins riveted thereto, as clearly shown, these pins being adapted to enter recesses or openings I3 in the head I4 of a bobbin I5 when the bobbin is in position on the pin board, as clearly shown in Figs. 1 and 2. The form oi bobbin herein shown is of the type having detachable heads substantially as disclosed in applicants Patent No. 2,237,837 of April 8, 1941, so that when in position thereon a Spanner wrench can be placed in the recesses or openings i3 in the upper head of the bobbin and the head readily removed as the bobbin is prevented from rotating. In the form shown in Fig. 8 cross bars I6 and I1 of the pin board are connected together by a bobbin supporting pin I8 in a similar manner as that shown in the preferred form of my invention, and instead of forming a separate clip for carrying the projections for preventing the bobbin from rotating a projection I9 in the form of a pin is riveted directly to the cross bar I1 of the pin board so that it will project into one of the recesses of the bobbin in order to prevent the same from rotating. It is of course understood that two of the projections I9 could be used if desired, or in fact any number of projections can be used, and that in the preferred embodiment of my invention one oi the pins can be eliminated and the plate provided with only one pin for preventing the bobbin from rotating.

From the foregoing description it will be seen that I have provided a pin board which is provided with the usual pins for supporting bobbins and an additional means cooperating with recesses or openings in the heads of the bobbins for preventing the same from rotating.

While in the specication and drawings I have described a bobbin with removable heads which are secured in position by revolving the same as for example threading the heads into a core on onto a barrel, it is of course understood that I do not wish to limit myself to any particular construction of bobbin with removable heads as my invention consists broadly in providing a pinboard oi any construction with means for supporting bobbins with removable heads and preventing the same from rotating when one of the heads is being removed therefrom.

I claim:

l. A pin board comprising a frame having cross bars connected together by pins for supporting a bobbin with detachable heads, and a projection carried by one of the cross bars cooperating with the bobbin for preventing the same from rotating.

2. A pin board comprising a frame having cross bars and pins for supporting bobbins, plates embracing said cross bars and secured thereto, and pins carried by said plates forming projections adapted to cooperate with recesses in the bobbin head for preventing the same from rotating.

3. A pin board having a plurality of pins for supporting bobbins having removable heads provided with recesses, and projections carried by the pin board extending into said recesses of said heads.

4. A pin board having cross bars connected together by pins for supporting bobbins, plates secured around said cross bars, and pins carried by said plates.

5. In combination, a pin board for supporting bobbins or the like, a bobbin having a removable head adapted to be placed upon said pin board, said bobbin being provided with recesses, and pins carried by said pin board extending into said recesses for preventing said bobbins from from rotating.

6. In combination, a pin board having pins for supporting bobbing provided with removable heads, projections disposed adjacent said pins, the heads cf said bobbins being provided with recesses to receive said projections for preventing said bobbins from rotating around said pins.

7. In combination, a pin board, a bobbin having removable heads adapted to be mounted thereon, said heads being provided with spanner Wrench engaging portions, and a projection carried by said pin board engaging said portions for preventing said bobbin from rotating.

S. A pin board comprising a frame having cross bars, pins carried by said cross bars for supporting bobbins with detachable heads, plates embracing said pins provided with U-shaped portions embracing said cross bars, said U-shaped portions being crimped around the cross bars for securing the plates in position, and a pin carried by said plate adapted to engage the lower head or" the bobbin when placed in position thereon for preventing the bobbin from rotating.

GEORGE B. MARKLE, JR.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date 1,883,488 Beardsley Oct. 18, 1932 1,956,631 Snyder May l, 1934 

